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* @license
* Copyright 2024 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { expect, use } from "chai";
import * as chaiAsPromised from "chai-as-promised";
import { GoogleGenerativeAI } from "../..";
import { GoogleAICacheManager } from "../../server"; //= require("@google/generative-ai/server");
use(chaiAsPromised);
/**
* Integration tests against live backend.
*/
describe("cacheContent", function () {
this.timeout(60e3);
this.slow(10e3);
const model = "models/gemini-1.5-pro-001";
let text: string = "";
// Minimum cache size is 32768 tokens.
for (let i = 0; i < 6554; i++) {
text += "Purple cats drink chicken soup.";
text += i % 8 === 7 ? "\n" : " ";
}
it("createCache", async () => {
// cacheManager create
const ttlSeconds = 5;
const displayName = "A display name.";
const cacheManager = new GoogleAICacheManager(
process.env.GEMINI_API_KEY || "",
);
const createCacheResult = await cacheManager.create({
ttlSeconds,
model,
contents: [
{
role: "user",
parts: [{ text }],
},
],
displayName,
});
expect(createCacheResult.name).to.exist;
expect(createCacheResult.model).to.exist;
expect(createCacheResult.createTime).to.exist;
expect(createCacheResult.updateTime).to.exist;
expect(createCacheResult.expireTime).to.exist;
expect(createCacheResult.displayName).to.exist.and.equal(displayName);
expect(createCacheResult.name.startsWith("cachedContents/")).to.be.true;
const createdTime = Date.parse(createCacheResult.createTime);
const expireTime = Date.parse(createCacheResult.expireTime);
expect(expireTime - createdTime).to.be.lessThanOrEqual(ttlSeconds * 1000);
});
it("cacheManager list", async () => {
// cacheManager create
const displayName = new Date().toISOString();
const cacheManager = new GoogleAICacheManager(
process.env.GEMINI_API_KEY || "",
);
const createCacheResult = await cacheManager.create({
ttlSeconds: 5,
model,
contents: [
{
role: "user",
parts: [{ text }],
},
],
displayName,
});
expect(createCacheResult.name).to.exist;
expect(createCacheResult.displayName).to.exist.and.equal(displayName);
expect(createCacheResult.name.startsWith("cachedContents/")).to.be.true;
// List
const listResult = await cacheManager.list();
expect(listResult.cachedContents).to.exist;
expect(
listResult.cachedContents.map((e) => ({ name: e.name })),
).to.deep.include({ name: createCacheResult.name });
expect(
listResult.cachedContents.map((e) => ({ displayName: e.displayName })),
).to.deep.include({ displayName });
});
it("cacheManager get", async () => {
// cacheManager create
const displayName = new Date().toISOString();
const cacheManager = new GoogleAICacheManager(
process.env.GEMINI_API_KEY || "",
);
const createCacheResult = await cacheManager.create({
ttlSeconds: 5,
model,
contents: [
{
role: "user",
parts: [{ text }],
},
],
displayName,
});
expect(createCacheResult.name).to.exist;
expect(createCacheResult.displayName).to.exist.and.equal(displayName);
expect(createCacheResult.name.startsWith("cachedContents/")).to.be.true;
// cacheManager.get
const cache = await cacheManager.get(createCacheResult.name);
expect(cache.name).to.equal(createCacheResult.name);
expect(cache.model).to.equal(createCacheResult.model);
expect(cache.createTime).to.equal(createCacheResult.createTime);
expect(cache.updateTime).to.equal(createCacheResult.updateTime);
expect(cache.expireTime).to.equal(createCacheResult.expireTime);
expect(cache.displayName).to.exist.and.equal(displayName);
});
it("cacheManager update ttl then get", async () => {
// cacheManager create
const displayName = new Date().toISOString();
const originalTtlSeconds = 20;
const cacheManager = new GoogleAICacheManager(
process.env.GEMINI_API_KEY || "",
);
const createCacheResult = await cacheManager.create({
ttlSeconds: originalTtlSeconds,
model,
contents: [
{
role: "user",
parts: [{ text }],
},
],
displayName,
});
expect(createCacheResult.name).to.exist;
expect(createCacheResult.name.startsWith("cachedContents/")).to.be.true;
expect(createCacheResult.displayName).to.exist.and.equal(displayName);
// cacheManager.update
const newTtlSeconds = originalTtlSeconds + 10;
const updateParams = { cachedContent: { ttlSeconds: newTtlSeconds } };
const updateResult = await cacheManager.update(
createCacheResult.name,
updateParams,
);
// cacheManager.get
const cache = await cacheManager.get(createCacheResult.name);
expect(cache.name).to.equal(createCacheResult.name);
expect(cache.name).to.equal(updateResult.name);
expect(cache.model).to.equal(createCacheResult.model);
expect(cache.model).to.equal(updateResult.model);
expect(cache.createTime).to.equal(createCacheResult.createTime);
expect(cache.updateTime).to.not.equal(createCacheResult.updateTime);
expect(cache.updateTime).to.equal(updateResult.updateTime);
expect(cache.expireTime).to.not.equal(createCacheResult.expireTime);
expect(cache.expireTime).to.equal(updateResult.expireTime);
expect(cache.displayName).to.exist.and.equal(displayName);
const createdTime = Date.parse(createCacheResult.createTime);
const expireTime = Date.parse(createCacheResult.expireTime);
const updatedTime = Date.parse(cache.updateTime);
expect(expireTime - createdTime).to.be.lessThanOrEqual(
originalTtlSeconds * 1000,
);
expect(expireTime - updatedTime).to.be.lessThanOrEqual(
newTtlSeconds * 1000,
);
});
it("cacheManager update expireTime then get", async () => {
// cacheManager create
const cacheManager = new GoogleAICacheManager(
process.env.GEMINI_API_KEY || "",
);
const createCacheResult = await cacheManager.create({
ttlSeconds: 20,
model,
contents: [
{
role: "user",
parts: [{ text }],
},
],
});
expect(createCacheResult.name).to.exist;
expect(createCacheResult.name.startsWith("cachedContents/")).to.be.true;
expect(createCacheResult.displayName).to.equal("");
// cacheManager.update
const newExpirationTime = new Date(new Date().getTime() + 30 * 1000);
const updateParams = {
cachedContent: { expireTime: newExpirationTime.toISOString() },
};
const updateResult = await cacheManager.update(
createCacheResult.name,
updateParams,
);
// cacheManager.get
const cache = await cacheManager.get(createCacheResult.name);
expect(cache.name).to.equal(createCacheResult.name);
expect(cache.name).to.equal(updateResult.name);
expect(cache.model).to.equal(createCacheResult.model);
expect(cache.model).to.equal(updateResult.model);
expect(cache.createTime).to.equal(createCacheResult.createTime);
expect(cache.updateTime).to.not.equal(createCacheResult.updateTime);
expect(cache.updateTime).to.equal(updateResult.updateTime);
expect(cache.expireTime).to.not.equal(createCacheResult.expireTime);
expect(cache.expireTime).to.equal(updateResult.expireTime);
});
it("generateContentWithCache", async () => {
const cacheManager = new GoogleAICacheManager(
process.env.GEMINI_API_KEY || "",
);
const createCacheResult = await cacheManager.create({
ttlSeconds: 20,
model,
contents: [
{
role: "user",
parts: [{ text }],
},
],
});
expect(createCacheResult.name).to.exist;
const cacheName = createCacheResult.name;
expect(cacheName.startsWith("cachedContents/")).to.be.true;
// cacheManager.get
const cache = await cacheManager.get(cacheName);
// generate content.
const genAI = new GoogleGenerativeAI(process.env.GEMINI_API_KEY);
const genAiModel = genAI.getGenerativeModelFromCachedContent(cache);
const result = await genAiModel.generateContent({
contents: [
{
role: "user",
parts: [{ text: "What do purple cats drink?" }],
},
],
});
const response = await result.response;
expect(response.text().toLowerCase().includes("chicken soup")).to.be.true;
});
});
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